Linux as a NAS performance questions

[Alan Johnson]

On Thu, Sep 17, 2009 at 7:32 PM, Neil Joseph Schelly <neil at jenandneil.com>wrote:

> Single-core processor: $40 (35W)
> http://www.newegg.com/Product/Product.aspx?Item=N82E16819116039
> Dual-core<http://www.newegg.com/Product/Product.aspx?Item=N82E16819116039%0ADual-core>processor: $50 (65W)
> http://www.newegg.com/Product/Product.aspx?Item=N82E16819116075
>
> 30W is decent savings.
>

Yes, but keep in mind those numbers are the Thermal Design Power of the
chips, which is the maximum heat dissipation.  If the cores are the exact
same technology, then yes, you will get better power performance out of the
single core.  However, if that the 65W TDP chip is well designed and has a
more efficient cores, one of them will essentially be off and draw almost no
power, while the other core averages much less power do the same amount of
processing than the single core.

I don't know if this is the case with these, but you might look at some
thing a little nicer than a Celeron with a similar TDP so that the average
processing power use is kept lower.  Does that make sense?  Maybe Celerons
are nicer now, but I was turned off of that brand when I found a 1.8 Ghz
Athlon was ararbitrarily more capable than a 2.8Ghz Celeron.  I also found
using a power meter that use much less kWh to do the same amount of work,
but I really don't think that old 2.8Ghz Celeron had a TDP anywhere near as
low as 35W.


>
> > Ubuntu Server does a very lean install as well.  Not quite as lean as
> > Debian (and others), but even at the command line, I find Ubuntu is more
> > friendly.
>
> I'm a Debian guy.  It's my intent to build it with Debian rather than a
> specific NAS distro.  I prefer turning Debian boxes into what I want than
> letting someone else do it for me.
>

Rock on.  Nothing wrong with that in my book.  If you are a Debian guy, then
I expect you don't need webmin either. =)

-- 
Alan Johnson
alan at datdec.com
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